axmol/cocos/2d/CCEvent.h

/****************************************************************************
 Copyright (c) 2013-2014 Chukong Technologies Inc.
 
 http://www.cocos2d-x.org
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
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 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.
 
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 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 ****************************************************************************/


#ifndef __CCEVENT_H__
#define __CCEVENT_H__

#include <string>
#include <stdint.h>

#include "base/CCRef.h"
#include "base/CCPlatformMacros.h"

NS_CC_BEGIN

class Node;

/**
 *   Base class of all kinds of events.
 */
class Event : public Ref
{
public:
    enum class Type
    {
        TOUCH,
        KEYBOARD,
        ACCELERATION,
        MOUSE,
        CUSTOM
    };
    
protected:
    /** Constructor */
    Event(Type type);
public:
    /** Destructor */
    virtual ~Event();

    /** Gets the event type */
	inline Type getType() const { return _type; };
    
    /** Stops propagation for current event */
    inline void stopPropagation() { _isStopped = true; };
    
    /** Checks whether the event has been stopped */
    inline bool isStopped() const { return _isStopped; };
    
    /** @brief Gets current target of the event
     *  @return The target with which the event associates.
     *  @note It onlys be available when the event listener is associated with node. 
     *        It returns 0 when the listener is associated with fixed priority.
     */
    inline Node* getCurrentTarget() { return _currentTarget; };
    
protected:
    /** Sets current target */
    inline void setCurrentTarget(Node* target) { _currentTarget = target; };
    
	Type _type;     ///< Event type
    
    bool _isStopped;       ///< whether the event has been stopped.
    Node* _currentTarget;  ///< Current target
    
    friend class EventDispatcher;
};

NS_CC_END


#endif // __CCEVENT_H__